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• M. Lacoste, M. Miettinen, Nuno Ferreira Neves, Fernando Ramos, M. Vukolic, F. Charmet, R. Yaich, K. Oborzynski, G. Vernekar, Paulo Sousa, “User-Centric Security and Dependability in the Clouds-of-Clouds”, IEEE Cloud Computing, vol. 3, no. 5, pp. 64–75, Nov. 2016.

• Alysson Bessani, Miguel Correia, Bruno Quaresma, Fernando André, Paulo Sousa, “DepSky: Dependable and Secure Storage in a Cloud-of-Clouds”, in Proceedings of the 6th ACM SIGOPS/EuroSys European Systems Conference - EuroSys'11. Salzburg, Austria. April 2011., Apr. 2011.

• Alysson Bessani, Miguel Correia, Paulo Sousa, “Active Quorum Systems”, in Proceedings of the 6th Workshop on Hot Topics in System Dependability - HotDep'10 (together with USENIX OSDI'10). Vancouver, Canada. October 2010., Oct. 2010.

• Bruno Quaresma, Alysson Bessani, Paulo Sousa, “Melhorando a Fiabilidade e Segurança do Armazenamento em Clouds”, in Actas do INForum - Simpósio de Informática 2010, Braga, Portugal, Sep. 2010., Sept. 2010.

• João Sousa, Alysson Bessani, Paulo Sousa, “Typhon: Um Serviço de Autenticação e Autorização Tolerante a Intrusões”, in 2th Simpósio de Informática (INFORUM), Sept. 2010.

• Paulo Sousa, Alysson Bessani, Miguel Correia, Nuno Ferreira Neves, Paulo Verissimo, “Highly Available Intrusion-Tolerant Services with Proactive-Reactive Recovery”, IEEE Transactions on Parallel and Distributed Systems, vol. 21, no. 4, pp. 452-465, Apr. 2010., Apr. 2010.

• Rogério Correia, Paulo Sousa, “Efficient State Transfer for Recovery-Based Byzantine-Fault-Tolerant State Machine Replication”, in Actas do INForum - Simpósio de Informática 2009, Lisbon, Portugal, September 2009., Sept. 2009.

• Alysson Bessani, Paulo Sousa, Miguel Correia, Nuno Ferreira Neves, Paulo Verissimo, “Cheap Intrusion-Tolerant Protection for CRUTIAL Things”, Missing institution, Tech. Rep., Aug. 2009. DI-FCUL TR-2009-14

• Alysson Bessani, Alessandro Daidone, Ilir Gashi, Rafael R. Obelheiro, Paulo Sousa, Vladimir Stankovic, “Enhancing Fault / Intrusion Tolerance through Design and Configuration Diversity”, in Proceedings of the 3rd Workshop on Recent Advances on Intrusion-Tolerant Systems (WRAITS 2009), Estoril, Portugal, June 2009., Jun. 2009.

• Paulo Sousa, Alysson Bessani, Wagner Saback Dantas, Fábio Souto, Miguel Correia, Nuno Ferreira Neves, “Intrusion-Tolerant Self-Healing Devices for Critical Infrastructure Protection”, in Proceedings of the 39th IEEE International Conference on Dependable Systems and Networks (DSN 2009), Estoril, Portugal, pp. 217-222, Jun-Jul 2009., Jun. 2009.

• Francisco Vieira, Paulo Sousa, Alysson Bessani, “Transparent Byzantine Fault-Tolerant Directory Service using COTS components”, in Proceedings of the 39th IEEE International Conference on Dependable Systems and Networks (DSN 2009) - Fast Abstract, Estoril, Portugal, Jun-Jul 2009., Jun. 2009.

• Rogério Correia, Paulo Sousa, “WEST: Wormhole-Enhanced State Transfer”, in Proceedings of the DSN 2009 Workshop on Proactive Failure Avoidance, Recovery and Maintenance (PFARM), Estoril, Portugal, June 2009., Jun. 2009.

• François Aubry, Alysson Bessani, Paulo Sousa, “BFT Services Programming with a Dependable Tuple Space”, in Proceedings of the 39th IEEE International Conference on Dependable Systems and Networks (DSN 2009) - Fast Abstract, Estoril, Portugal, Jun-Jul 2009., Jun. 2009.

• Paulo Verissimo, Miguel Correia, Nuno Ferreira Neves, Paulo Sousa, “Intrusion-Resilient Middleware Design and Validation”, in Information Assurance, Security and Privacy Services, ser. Handbooks in Information Systems. Emerald Group Publishing Limited, May 2009, vol. 4, pp. 615–678.

• Paulo Verissimo, Alysson Bessani, Miguel Correia, Nuno Ferreira Neves, Paulo Sousa, “Designing Modular and Redundant Cyber Architectures for Process Control: Lessons learned”, in Proceedings of the 42nd Hawaii International Conference for the Systems Sciences (HICSS-42), Waikoloa, Hawaii, January 2009., Jan. 2009.

• Alysson Bessani, Paulo Sousa, Miguel Correia, Nuno Ferreira Neves, Paulo Verissimo, “The CRUTIAL Way of Critical Infrastructure Protection”, IEEE Security and Privacy, vol. 6, no. 6, pp. 44-51, Nov/Dec 2008., Dec. 2008.

• Alysson Bessani, Hans P. Reiser, Paulo Sousa, I. Gashi, V. Stankovic, T. Distler, R. Kapitza, A. Daidone, Rafael R. Obelheiro, “FOREVER: Fault/intrusiOn REmoVal through Evolution & Recovery”, in In Middleware (Companion), Leuven, Belgium, pages 99-101, December 2008., Dec. 2008.

• Hugo Ortiz, Paulo Sousa, Paulo Verissimo, “Towards Intrusion-Tolerant Process Control Software”, in 4th National Conference on Segurança Informática nas Organizações (SINO 2008), Coimbra, Portugal, October 2008., Oct. 2008.

• Paulo Sousa, Alysson Bessani, Rafael R. Obelheiro, “The FOREVER Service for Fault/Intrusion Removal”, in Proceedings of the 2nd Workshop on Recent Advances on Intrusion-Tolerant Systems (WRAITS 2008). Glasgow, UK, April 2008., Apr. 2008.

• Paulo Sousa, Alysson Bessani, Miguel Correia, Nuno Ferreira Neves, Paulo Verissimo, “Resilient Intrusion Tolerance through Proactive and Reactive Recovery”, in Proceedings of the 13th IEEE Pacific Rim International Symposium on Dependable Computing (PRDC 07), Melbourne, Australia, pages 373-380, December 2007., Dec. 2007.

• Paulo Sousa, Nuno Ferreira Neves, Paulo Verissimo, “Hidden Problems of Asynchronous Proactive Recovery”, in Third Workshop on Hot Topics in System Dependability (HotDep 2007), Edinburgh, UK, Jun. 2007.

• Paulo Sousa, “Proactive Resilience”, Ph.D. dissertation, Departamento de Informática, Faculdade de Ciências, Universidade de Lisboa, May 2007.

• Alysson Bessani, Paulo Sousa, Miguel Correia, Nuno Ferreira Neves, Paulo Verissimo, “Intrusion-Tolerant Protection for Critical Infrastructures”, Missing institution, Tech. Rep., Apr. 2007. Technical Report DI/FCUL TR-07-8. Department of Computer Science, University of Lisboa. April 2007.

• Paulo Sousa, “Proactive Resilience”, in In Sixth European Dependable Computing Conference (EDCC-6) Supplemental Volume. Coimbra, Portugal, pages 27-32, October 2006., Oct. 2006.

• Paulo Sousa, Nuno Ferreira Neves, Paulo Verissimo, William H. Sanders, “Proactive Resilience Revisited: The Delicate Balance Between Resisting Intrusions and Remaining Available”, in Proceedings of the 25th IEEE Symposium on Reliable Distributed Systems (SRDS), Leeds, UK, pages 71-80, October 2006., Oct. 2006.

• Paulo Sousa, Nuno Ferreira Neves, Paulo Verissimo, “Proactive Resilience through Architectural Hybridization”, in Proceedings of the 2006 ACM Symposium on Applied Computing (SAC), Dijon, France, pages 686-690, April 2006., Apr. 2006.

• Paulo Sousa, Nuno Ferreira Neves, Paulo Verissimo, “Resilient State Machine Replication”, in In Proceedings of the 11th Pacific Rim International Symposium on Dependable Computing (PRDC), Changsha, China, pages 305-309, December 2005., Dec. 2005.

• Paulo Sousa, Nuno Ferreira Neves, Paulo Verissimo, “How Resilient are Distributed f Fault/Intrusion-Tolerant Systems?”, in In Proceedings of the 2005 International Conference on Dependable Systems and Networks (DSN'05). Yokohama, Japan, pages 98-107, June 2005., Jun. 2005.

• Pedro Martins, Paulo Sousa, António Casimiro, Paulo Verissimo, “A New Programming Model for Dependable Adaptive Real-Time Applications”, IEEE Distributed Systems Online, vol. 6, no. 5, 2005., May 2005.

• Paulo Sousa, Nuno Ferreira Neves, Paulo Verissimo, “Proactive Resilience through Architectural Hybridization (extended version)”, Missing institution, Tech. Rep., May 2005. Technical Report DI/FCUL TR-05-8. Department of Computer Science, University of Lisboa. May 2005.

• Paulo Sousa, Nuno Ferreira Neves, Paulo Verissimo, “A New Approach to Proactive Recovery”, in In Fifth European Dependable Computing Conference (EDCC-5) Supplemental Volume. Budapest, Hungary, pages 35-40, April 2005., Apr. 2005.

• Pedro Martins, Paulo Sousa, António Casimiro, Paulo Verissimo, “Dependable Adaptive Real-Time Applications in Wormhole-based Systems”, in Proceedings of the International Conference on Dependable Systems and Networks (DSN'04), Florence, Italy, June 2004, Jul. 2004.

• G. Blair, K. Cheverst, H. Duran-Limon, A. Friday, G. Samartzidis, T. Sivaharan, Paulo Sousa, M. Wu, “Analysis and Design of Application Scenarios”, Missing institution, Tech. Rep., May 2003. Technical Report DI/FCUL TR-03-21, Department of Computer Science, University of Lisbon. July 2003

• V. Cahill, António Casimiro, Jörg Kaiser, Pedro Martins, V. Reynolds, Paulo Sousa, Paulo Verissimo, M. Wu, “Proof-of-concept prototypes”, Missing institution, Tech. Rep., Apr. 2003. Technical Report DI/FCUL TR-03-20, Department of Computer Science, University of Lisbon. July 2003

• Paulo Sousa, Paulo Verissimo, “Towards a cooperating autonomous car”, in Proceedings of the 7th CaberNet Radicals Workshop, Bertinoro, Italy, Oct 2002, Oct. 2002.